Database: Add autoincrement, uniqueness, and sync-writes polyfills#28
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matriv
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thx! LGTM, but please wait for one more review.
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| The package bundles a few support and utility functions that try to fill a few | ||
| gaps you will observe when working with CrateDB, when compared with other | ||
| databases. As a distributed OLAP database, it naturally does not include certain |
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I think that we shouldn't mention as a distributed OLAP, specially combining it with naturally after that, I would simplify and say that CrateDB's behavior and features deviate from those found usually in an RDBMS.
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Maybe something like "Due to its distributed nature, CrateDB's behavior and features differ from those found in other RDBMS systems".
| which enable automatically assigning incremental values when inserting records. | ||
| However, it offers server-side support by providing an SQL function to generate | ||
| random identifiers of ``STRING`` type, and client-side support for generating | ||
| ``INTEGER``-based identifiers on behalf of the SQLAlchemy dialect. |
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Not sure what "on behalf of" means here - does this mean "when using the SQLAlchemy dialect" or something else? "on behalf of" implies there's some ID generating function that can be plugged into SQLAlchemy. I don't know SQLAlchemy so am not sure what happens here.
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"when using the SQLAlchemy dialect" is better. Thanks.
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Left a couple of small suggestions.
Sources: MLflow, LangChain, Singer/Meltano, rdflib-sqlalchemy
Co-authored-by: Marios Trivyzas <5058131+matriv@users.noreply.github.com> Co-authored-by: Simon Prickett <simon@crudworks.org>
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@matriv and @simonprickett: Thanks a stack for your excellent reviews. 💯 |
| full_table_name = f'"{clauseelement.table.name}"' | ||
| if clauseelement.table.schema is not None: | ||
| full_table_name = f'"{clauseelement.table.schema}".' + full_table_name |
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I think I'd prefer moving this quoting logic into the refresh_tablefunction, by change it's signature to consume an optional schema. This would avoid that it will be called with unquoted or invalid relation names.
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Add a few polyfills conceived on behalf of the LangChain adapter, and patches to
rdflib-sqlalchemyas well asmeltano-target-cratedb. By adding them here, they can be used by downstream applications without needing to installcratedb-toolkit.Documentation
Preview: https://sqlalchemy-cratedb--28.org.readthedocs.build/support.html
@simonprickett: I would also be happy about your review on documentation syntax/grammar/wording, as I am not an English native speaker. Thanks!
References
UNIQUEconstraints #76AUTOINCREMENTcolumns #77REFRESH TABLE#83Backlog